William best



Patented May l6, I899.

W. BEST.

APPARATUS FOR ELEBTRIGALLY IGNITINE MINEBS SAFETY LAMPS.

' (Application mm Dec. 2a; 1897.)

No. 625,0l4.

(No Model.)

Nirnn STATES PATENT OFFICE.

WILLIAM BEST, OF MORLEY, ENGLAND, ASSIGNOR TO THE ACKROYD &

BEST, LIMITED, OF .SAME PLACE.

APPARATUS FOR ELECTRlCALLY lGNlTlNG MINERS SAFETY-LAMPS.

SPECIFICATION forming part of Letters Patent No. 625,014, dated May 16, 1899.

Application filed December 23, 1897.

To aZZ whom it may concern/.

Be it known that I, WIL I M BEsT, a subject of the Queen of Great Britain and Ireland, and a resident of Morley, near Leeds, in the county of York, England, .have invented certain new and useful Improvements in Apparatus for Electrically Igniting Miners Safety-Lamps, (for which I have obtained a patent in Great Britain, No. 1,082, bearing date February 22, 1896,) of which the following is a specification.

This invention refers to apparatus for electrically igniting miners safety-lamps; and the object is to construct apparatus whereby the wicks of the said lamps may be ignited in a more expeditious and certain manner than heretofore. y

In order that my invention may be clearly understood, I will proceed to describe the same with reference to the accompanying drawings, in which similar letters refer to like parts in both figures.

Figure 1 is a vertical section of a lamp constructed according to my invention, and Fig. 2 is a section of an apparatus for electrically igniting the said lamp.

A is a conductor provided with a cap A, which conductor passes through the center of the wick B by way of an insulating-tube C, and the said tube 0 is held in position by a tube D, which latter is securely fixed to the lamp-bottom E.

F is the wicktube, which holds the wick at the required height, and G is a regulatingtube which slides on the wick-tube F, and the height of the regulating-tube G maybe regulated by a screw H, thus enabling the flame from the wick to be raised or lowered, as desired.

Referring particularly to Fig. 2, J is a wire which connects a battery K with a terminal L of a coil M, and N is a wire which connects the other terminal P of the coil M with the said battery K, a push-switch It being provided for connecting and disconnecting the battery. S is a ring for the reception of the Serial-No. 663,120. (No model.)

lamp to be lighted, and-the push-switch It comes through the ring S, so as to be actuated by the lamp on the latter being inserted in the said ring. Tis a spring-contact which is connected with the secondary circuit of the coil M by means of wire U, and V is another contact-piece, which is connected to the other pole of the secondary circuit of the coil M by means of a wire W.

By placing a lamp constructed as described with reference to Fig. 1 in the ring 8 the spring-contact T comes against the conductor A and the edge of the lamp-bottom, E rests on the contact-piece V, thus completing a the secondary circuit of the coiiM. The placing of the lamp in the ring Sf depresses the push-switch R, thereby connecting the coil M with, the battery K, and this connection causes an induced current to pass from the coil M through the wire U, spring-contact '1, and the conductor A, from which latter it passes in the form of a spark or sparks across the wick B to the regulating-tube G, and thence by way of the lamp-bottom E, contactpiece V, and wire W back tothe coil M. The sparks in passing between the cap A and regulating-tube G ignite the wick B, and the central position of the conductor A enables the said sparks to pass directly over. and in contact with the said wick, thus obviating the danger hitherto experienced of the electric sparks failing to come in contact with the wick and therefore failing to light the same. Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is 1 1. A miners lamp having a metallic base, a wick and means for adjusting the same, a central conductor A and means for insulat ing the same, in combination with a ring for receiving the base of the lamp, a central springrcontact, an induction-coil and connections therefrom to the central contact and to a contact for the lamp-base, a push-switch ac tuated by the lamp for closing an electric cir unit to the primary of. the induction-coil so that the spark from the induction-coil is disulating-tube C and carrying a cap A, torected across the wick t0 the metal of the gether with a suitable apparatus for passing [0 lamp, substantially as specified. a current from the cap A across the wick B 2. A miners lamp having a tubular wick B to the Wick-tube D, substantially as set forth. 5 carried on a tube D securely attached to the WILLIAM BEST.

lamp-bottom E, and an adjustable wick-tube W itnesses: G, in combination with a central conductor I GRIFFITH BREWER,

A insulated from the lamp-bottom by an im i JOHN J OWETT. 

